Miley's Worst Week Ever

The music industry's good girl, Miley Cyrus, is juggling more than a booming music and film career these days. After photos of the 15-year-old leaked online showing her posing in front of a camera in her underwear, those behind the star's "clean image" are fearing the effect it may have on the teen sensation's reputation.

This isn't the first time the Hannah Montana star has caused a stir with potentially racy photos. In December, blogs were abuzz with candid shots of her practically tongue to tongue with a female pal. At the time, Miley told NYC radio station Z100 that the pictures were being blown out of proportion.

"Part of her public appeal has been that she's a squeaky clean Hollywood good girl and she's not seen out partying and flaunting her sexuality like many young stars today," an insider tells OK!.

As for the recent batch of pictures making it's way over the Internet, the insider says, "Miley was just having fun and goofing around in all these pictures, like any normal teen. They were never supposed to be made public, and Miley feels very betrayed that someone close to her leaked them."

For the full story on Miley, pick up the new OK!, on sale everywhere Thursday!